CN211275481U - Transmission device of bouncing screen - Google Patents

Abstract

The utility model discloses a transmission of bounce sieve. This novel eccentric module includes the eccentric disc, the dustproof inner circle of maze and the dustproof outer lane of maze are installed respectively at the inner hole wall both ends of the outer lane of eccentric disc, the dustproof inner circle of maze and the sealed intracavity of the dustproof outer lane of maze that two bearing seal installed corresponded about a set of, the downthehole axial positioning cover of installation of eccentric shaft of inner circle, radial fixed plate connects perpendicularly in axial positioning cover outer wall one end, radial fixed plate threaded connection is at the side surface of inner circle, axial positioning cover's constant head tank and main shaft are through the tight cover connection that rises, through the vertical spacing connection of first connection key between the axial positioning cover other end and the main shaft, inner circle side surface and radial fixed plate upper end are through the spacing connection of second connection key axial. The utility model discloses it is good to have dustproof sealing, and rotating part wearing and tearing are little, the high effect of installation accuracy.

Description

Transmission device of bouncing screen

Technical Field

The utility model relates to a bounce screen, in particular to transmission of bounce screen.

Background

In the garbage sorting process, the bouncing sieve is applied to a garbage subdivision working section, a sieve plate in the bouncing sieve is fixed on an eccentric disc of a transmission device, and the eccentric disc drives the sieve plate to move up and down regularly under the driving of the transmission device.

And the transmission of same platform bounce screen need install the eccentric disc of different angles, and original eccentric disc installation adopts to rise tight cover and axle and connect alone, and the control of angle is decided by installer's experience, and its defect lies in: firstly, the installation precision is difficult to ensure, the radial positioning is difficult to ensure, and the displacement and the play are easy to occur; secondly, the connecting transmission torque of the tensioning sleeve is small, the overload is easy, and the tensioning sleeve and the shaft surface rub to cause the abrasion and deformation of the shaft surface during the overload.

Meanwhile, the inner ring and the outer ring of the original eccentric disc are supported by a single bearing in a transmission way, so that the structure is inconvenient to install, maintain and replace and has small transmission load; and the single bearing dustproof sealing of the original eccentric disc can not be ensured, and the service life is short in the environments of high dust, high humidity, high acidity and alkalinity and the like in garbage sorting.

SUMMERY OF THE UTILITY MODEL

In order to solve one or more of the above problems, the present invention provides a transmission device for a bounce screen.

According to one aspect of the utility model, the transmission device of the bouncing screen comprises an eccentric disc, the eccentric disc comprises an outer ring and an inner ring with an eccentric structure, two labyrinth dustproof inner rings are respectively arranged at two ends of the inner hole wall of the outer ring, two labyrinth dustproof outer rings are respectively arranged at two ends of the peripheral wall of the inner ring,

two bearings are arranged in parallel side by side, each bearing is hermetically arranged in a group of sealing cavities of the upper and lower corresponding labyrinth dustproof inner rings and labyrinth dustproof outer rings,

an axial positioning sleeve is arranged in an eccentric shaft hole of the inner ring, a radial fixing plate is vertically connected with one end of the outer wall of the axial positioning sleeve, the radial fixing plate is in threaded connection with the side surface of the inner ring,

the axial positioning sleeve is characterized in that one end of a central hole of the axial positioning sleeve is provided with a large-diameter positioning groove, the positioning groove and the main shaft are connected through the tensioning sleeve and are axially limited, the other end of the axial positioning sleeve and the main shaft are longitudinally limited and connected through a first connecting key, so that radial transmission is realized, and the side surface of the inner ring and the upper end of the radial fixing plate are axially limited and connected through a second connecting key, so that radial transmission is realized.

In some embodiments, the support plate further comprises a support plate bent at a right angle, two ends of the outer peripheral wall of the outer ring are respectively welded with a flange plate, the horizontal plate of the support plate is in threaded connection with the screen plate, and the vertical plate of the support plate is fixed at the upper end of the flange plate through a threaded connection column.

In some embodiments, the labyrinth dust-proof inner ring comprises a circular first body, one side of the middle of the first body protrudes outwards to form a first positioning ring, the upper end of the first body is provided with an upper connecting end,

the labyrinth dustproof outer ring comprises a circular second body, one side of the middle of the second body protrudes outwards to form a second positioning ring, the upper end of the second body is provided with a lower connecting end, the lower connecting end and the upper connecting end are two ends of a labyrinth sealing structure which are matched with each other,

the dustproof outer ring of maze is installed in the outer lane and the dustproof outer lane of maze is installed behind the inner circle, goes up the link and becomes labyrinth seal with lower link interconnect, and a bearing is installed to the cavity of the relative first holding ring of every group and second holding ring from top to bottom.

In some embodiments, the lower end outer side wall of the first body is circumferentially arrayed with a plurality of first stepped through holes, and the outer side wall of the outer ring is circumferentially arrayed with a plurality of fourth threaded blind holes;

a plurality of second stepped through holes are formed in the circumferential array of the outer side wall at the upper end of the second body, and a plurality of third threaded blind holes are formed in the circumferential array of the outer side wall of the inner ring.

In some embodiments, the bearing is a deep groove ball bearing.

In some embodiments, the outer wall of the main shaft is provided with an axial key groove, the central hole of the axial positioning sleeve is provided with an axially arranged upper key groove, the upper end of the first connecting key is connected with the upper key groove, and the lower end of the first connecting key is connected with the axial key groove;

one side surface of the radial fixing plate is provided with a longitudinal groove, one side surface of the inner ring is provided with a radial groove, one end of the second connecting key is connected with the radial groove, and the other end of the second connecting key is connected with the longitudinal groove.

In some embodiments, the first and second connection keys are flat keys or splines.

In some embodiments, a plurality of first threaded blind holes are circumferentially arrayed on the end surface of the positioning groove, and the threaded part of the tensioning sleeve is screwed into the first threaded blind holes.

In some embodiments, the radial fixing plate is vertically welded at one end of the axial positioning sleeve, the upper end of the radial fixing plate is provided with a plurality of first through holes, the side surface of the inner ring is provided with a plurality of second threaded blind holes, and the threaded piece penetrates through the first through holes and is screwed into the second threaded blind holes, so that the radial fixing plate is fixed on the side surface of the inner ring.

In some embodiments, a reinforcing rib plate is further arranged in the middle of the other side of the radial fixing plate, and the lower end of the reinforcing rib plate is welded at the upper end of the axial positioning sleeve.

The device adopts the double-row bearing to transmit torque, can greatly improve the bearing capacity, is suitable for heavy load working conditions, adopts the labyrinth dustproof inner ring and the labyrinth dustproof outer ring to perform good dustproof sealing, has good dustproof sealing effect, is suitable for various complex environments, and has long service life of the bearing, low stopping rate in equipment and high utilization rate of the equipment; and the installation accuracy greatly reduced of this structure bearing can practice thrift the manual work, and the dustproof construction who should set up is simple simultaneously, convenient processing, and the bearing is convenient to be changed.

The transmission device of the bouncing screen adopts the first connecting key, the tensioning sleeve and the second connecting key to transmit torque, and particularly, the transmission device is connected with the key, so that larger torque can be transmitted, and the overload upper limit is greatly improved; the first connecting key is adopted for axial positioning, the second connecting key is adopted for radial positioning, the angle of the first connecting key can be easily obtained with high precision through machining, higher installation precision can be obtained through bidirectional positioning, and the left and right play and up and down jumping are not easy to occur; the beneficial effects are as follows: the three connecting parts can transmit torque with a larger limit, overload is not easy to occur, the outer surfaces of the tensioning sleeve and the shaft are effectively protected from abrasion, the service life is longer, the bouncing performance with larger force is obtained, and the screening effect is improved; secondly, the position of the first connecting key determines the installation precision of the eccentric disc, and the position is obtained by machining, so that the positions of the eccentric discs with different intersection positions can be effectively obtained to meet the screening requirement; thirdly, the combination of the first connecting key and the tensioning sleeve can effectively fix the eccentric disc axially to prevent the eccentric disc from longitudinally moving, and the second connecting key can effectively prevent the eccentric disc from unnecessarily jumping up and down; fourthly, for the original installation accuracy of confirming by workman's technical merit, this structure is convenient for install and is dismantled, can effectually obtain higher installation accuracy.

Drawings

Fig. 1 is a schematic view of a transmission of a bouncing screen according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of the transmission of the pop-up screen of FIG. 1;

FIG. 3 is an enlarged partial schematic view (one) of a transmission of the pop-up screen of FIG. 2;

FIG. 4 is an enlarged partial schematic view (II) of a transmission of the pop-up screen of FIG. 2;

FIG. 5 is a schematic front view of the axial positioning sleeve and the radial fixing plate shown in FIG. 1;

FIG. 6 is a schematic half-sectional view of the axial positioning sleeve and the radial retaining plate shown in FIG. 1;

FIG. 7 is a three-dimensional schematic view of the eccentric disc shown in FIG. 1;

the main shaft 01, the axial keyway 011, the eccentric disc 1, the outer ring 10, the fourth threaded blind hole 101, the inner ring 11, the eccentric shaft hole 110, the radial groove 111, the third threaded blind hole 112, the second threaded blind hole 12, the threaded connection post 13, the support plate 14, the flange plate 15, the axial positioning sleeve 2, the central hole 21, the upper key groove 22, the positioning groove 23, the first threaded blind hole 24, the positioning ring surface 25, the first shoulder 26, the radial fixing plate 3, the longitudinal groove 31, the first through hole 32, the mounting hole 33, the reinforcing rib plate 34, the tension sleeve 4, the first connection key 5, the second connection key 6, the bearing 7, the labyrinth dustproof inner ring 8, the first body 80, the first positioning ring 81, the upper connection end 82, the first stepped through hole 83, the labyrinth dustproof outer ring 9, the second body 90, the second positioning ring 91, the lower connection end 92 and the second stepped through hole 93.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Fig. 1 to 7 schematically show a transmission of a bouncing screen according to an embodiment of the invention. As shown in the figure, the device comprises an eccentric disc 1, the eccentric disc 1 comprises an outer ring 10 and an inner ring 11 with an eccentric structure, two labyrinth dustproof inner rings 8 are respectively arranged at two ends of the inner hole wall of the outer ring 10, two labyrinth dustproof outer rings 9 are respectively arranged at two ends of the outer peripheral wall of the inner ring 11,

two bearings 7 are arranged in parallel side by side, each bearing 7 is hermetically arranged in a sealing cavity of a group of vertically corresponding labyrinth dustproof inner rings 8 and labyrinth dustproof outer rings 9,

an axial positioning sleeve 2 is arranged in an eccentric shaft hole 110 of the inner ring 11, a radial fixing plate 3 is vertically connected at one end of the outer wall of the axial positioning sleeve 2, the radial fixing plate 3 is in threaded connection with the side surface of the inner ring 11,

the one end of the centre bore 21 of axial positioning sleeve 2 is equipped with major diameter's constant head tank 23, and constant head tank 23 and main shaft 01 connect and carry out the axial spacing through tight cover 4 that rises, connect through the vertical spacing of first connecting key 5 between the axial positioning sleeve 2 other end and the main shaft 01 to realize radial transmission, inner circle 11 side surface and radial fixed plate 3 upper end pass through 6 axial spacing connections of second connecting key, thereby realize radial transmission. The spindle 01 is connected with a driving motor and can be controlled by the driving motor to rotate regularly.

The device adopts the double-row bearing 7 to transmit torque, can greatly improve the bearing capacity, is suitable for heavy load working conditions, adopts the labyrinth dustproof inner ring 8 and the labyrinth dustproof outer ring 9 to perform good dustproof sealing, has good dustproof sealing effect, is suitable for various complex environments, and has long service life of the bearing, low stop rate in equipment and high utilization rate of the equipment; and the installation accuracy greatly reduced of this structure bearing can practice thrift the manual work, and the dustproof construction who should set up is simple simultaneously, convenient processing, and bearing 7 is convenient to be changed.

In addition, the transmission device of the bouncing screen adopts the first connecting key 5, the tensioning sleeve 4 and the second connecting key 6 to transmit torque, especially key connection, so that larger torque can be transmitted, and the overload upper limit is greatly improved; the first connecting key 5 is adopted for axial positioning, the second connecting key 6 is adopted for radial positioning, the angle of the first connecting key 5 can be easily obtained with high precision through machining, higher installation precision can be obtained through bidirectional positioning, and the left and right movement and up and down jumping are not easy to occur; the beneficial effects are as follows: the three connecting parts can transmit torque with a larger limit, overload is not easy to occur, the outer surfaces of the tensioning sleeve 4 and the shaft 01 are effectively protected from abrasion, the service life is longer, the bouncing performance with larger force is obtained, and the screening effect is improved; secondly, the position of the first connecting key 5 determines the installation precision of the eccentric disc 1, and the position is obtained by machining, so that better different eccentric disc positions can be effectively obtained to meet the screening requirement; thirdly, the combination of the first connecting key 5 and the tensioning sleeve 4 can effectively axially fix the eccentric disc 1 to prevent the eccentric disc 1 from longitudinally moving, and the second connecting key 6 can effectively prevent the eccentric disc 6 from unnecessarily jumping up and down; fourthly, for the original installation accuracy of confirming by workman's technical merit, this structure is convenient for install and is dismantled, can effectually obtain higher installation accuracy.

Preferably, the support plate further comprises a support plate 14 bent at a right angle, two ends of the outer peripheral wall of the outer ring 10 are respectively welded with a flange plate 15, a horizontal plate of the support plate 14 is in threaded connection with a screen plate, and a vertical plate of the support plate 14 is fixed at the upper end of the flange plate 15 through a threaded connection column 13. The beneficial effects are as follows: the structure is simple and the bearing capacity is strong.

Preferably, the labyrinth dust-proof inner ring 8 comprises a circular first body 80, a first positioning ring 81 is formed by one side of the middle of the first body 80 protruding outwards, an upper connecting end 82 is formed at the upper end of the first body 80,

the labyrinth dustproof outer ring 9 comprises a circular second body 90, a second positioning ring 91 is formed by outwards protruding one side of the middle of the second body 90, a lower connecting end 92 is formed at the upper end of the second body 90, the lower connecting end 92 and the upper connecting end 82 are two ends of a labyrinth sealing structure which are matched with each other,

after the labyrinth dustproof inner ring 8 is installed on the outer ring 10 and the labyrinth dustproof outer ring 9 is installed on the inner ring 11, the upper connecting end 82 and the lower connecting end 92 are connected with each other to form a labyrinth seal, and a bearing 7 is installed in a cavity of each group of the first positioning ring 81 and the second positioning ring 91 which are opposite up and down. The beneficial effects are as follows: the structure has good installation precision and is convenient to install.

Preferably, a plurality of first stepped through holes 83 are formed in the circumferential array of the outer side wall of the lower end of the first body 80, a plurality of fourth threaded blind holes 101 are formed in the circumferential array of the outer side wall of the outer ring 10, and a cylindrical head screw is screwed into the fourth threaded blind holes 101 through the first stepped through holes 83, so that the labyrinth dust-proof inner ring 8 is fixed on the outer ring 10;

the upper end outer side wall circumference array of the second body 90 is formed with a plurality of second step through holes 93, the outer side wall circumference array of the inner ring 11 is formed with a plurality of third threaded blind holes 112, and the cylindrical head screw is screwed into the third threaded blind holes 112 through the second step through holes 93, so that the labyrinth dust-proof outer ring 9 is fixed on the inner ring 11. The beneficial effects are as follows: the structure is simple, the dismounting is convenient, and the sealing is good.

Preferably, the bearing 7 is a deep groove ball bearing. The beneficial effects are as follows: the assembly precision of the deep groove ball bearing is easy to achieve, the installation is convenient, the dustproof, sealing and lubricating structures are added singly, and the maintenance and the replacement are simpler and quicker.

Preferably, the outer wall of the main shaft 01 is provided with an axial key groove 011, the central hole 21 of the axial positioning sleeve 2 is provided with an upper key groove 22 which is axially arranged, the upper end of the first connecting key 5 is connected with the upper key groove 22, and the lower end of the first connecting key is connected with the axial key groove 011 for longitudinal limiting connection, so that radial transmission is realized;

one side surface of radial fixed plate 3 is equipped with longitudinal groove 31, is equipped with radial groove 111 on the one side surface of inner circle 11, and radial groove 111 is connected to second connecting key 6 one end and the other end is connected longitudinal groove 31 and is carried out radial spacing connection to realize radial transmission. The beneficial effects are as follows: this arrangement further improves the mounting accuracy of the first and second connection keys 5 and 6, and is simple in structure and small in overall size.

Preferably, the first connecting key 5 and the second connecting key 6 are flat keys or splines.

When the first connecting key 5 is a spline, the longitudinal key groove 31 and the radial groove 111 are spline grooves arranged in circumferential array. The beneficial effects are as follows: the flat key is convenient to mount and dismount, and the connection is firm and reliable; the spline can achieve higher transmission torque.

Preferably, a plurality of first threaded blind holes 24 are circumferentially arrayed on the end surface of the positioning groove 23, and the threaded member of the tensioning sleeve 4 is screwed into the first threaded blind holes 24. The beneficial effects are as follows: this arrangement further optimizes product size.

Preferably, the radial fixing plate 3 is vertically welded at one end of the axial positioning sleeve 2, the upper end of the radial fixing plate 3 is provided with a plurality of first through holes 32, the side surface of the inner ring 11 is provided with a plurality of second threaded blind holes 12, and the threaded part penetrates through the first through holes 32 and is screwed into the second threaded blind holes 12, so that the radial fixing plate 3 is fixed on the side surface of the inner ring 11. The beneficial effects are as follows: the screw thread connection of the arrangement is connected and fastened; and the welding processing is convenient.

Preferably, a positioning ring surface 25 is formed in the middle of one end of the axial positioning sleeve 2, a first blocking shoulder 26 is formed at one end of the positioning ring surface 25, a mounting hole 33 is formed at the lower end of the radial fixing plate 3, the length of the mounting hole 33 is equal to the width of the positioning ring surface 25, the diameter of the mounting hole 33 is equal to the diameter of the positioning ring surface 25,

the mounting hole 33 of the radial fixing plate 3 is sleeved on the positioning ring surface 25, one side of the radial fixing plate 3 is attached to the first retaining shoulder 26, and the other side of the radial fixing plate 3 is attached to the side surface of the inner ring 11. The beneficial effects are as follows: the axial positioning sleeve 2 can obtain better positioning precision.

Preferably, a reinforcing rib plate 34 is further arranged in the middle of the other side of the radial fixing plate 3, and the lower end of the reinforcing rib plate 34 is welded at the upper end of the axial positioning sleeve 2. The beneficial effects are as follows: the reinforcing rib plate 34 can obtain more excellent strength.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. A transmission device of a bouncing screen is characterized by comprising an eccentric disc (1), wherein the eccentric disc (1) comprises an outer ring (10) and an inner ring (11) with an eccentric structure, two labyrinth dustproof inner rings (8) are respectively installed at two ends of the inner hole wall of the outer ring (10), two labyrinth dustproof outer rings (9) are respectively installed at two ends of the outer peripheral wall of the inner ring (11),

the two bearings (7) are arranged in parallel side by side, each bearing (7) is hermetically arranged in a group of sealing cavities of the labyrinth dustproof inner ring (8) and the labyrinth dustproof outer ring (9) which correspond up and down,

an axial positioning sleeve (2) is arranged in an eccentric shaft hole (110) of the inner ring (11), a radial fixing plate (3) is vertically connected to one end of the outer wall of the axial positioning sleeve (2), the radial fixing plate (3) is in threaded connection with the side surface of the inner ring (11),

one end of a central hole (21) of the axial positioning sleeve (2) is provided with a large-diameter positioning groove (23), the positioning groove (23) is connected with the main shaft (01) through a tensioning sleeve (4) and axially limited, the other end of the axial positioning sleeve (2) is longitudinally limited and connected with the main shaft (01) through a first connecting key (5), so that radial transmission is achieved, and the side surface of the inner ring (11) is axially limited and connected with the upper end of the radial fixing plate (3) through a second connecting key (6), so that radial transmission is achieved.

2. The transmission device of the bouncing screen as claimed in claim 1, further comprising a support plate (14) bent at a right angle, wherein two ends of the outer peripheral wall of the outer ring (10) are respectively welded with a flange plate (15), a horizontal plate of the support plate (14) is in threaded connection with a screen plate, and a vertical plate of the support plate (14) is fixed at the upper end of the flange plate (15) through a threaded connection column (13).

3. The transmission device of the bouncing screen as claimed in claim 1, wherein the labyrinth dustproof inner ring (8) comprises a circular first body (80), one side of the middle of the first body (80) protrudes outwards to form a first positioning ring (81), an upper connecting end (82) is formed at the upper end of the first body (80),

the labyrinth dustproof outer ring (9) comprises a circular second body (90), one side of the middle of the second body (90) protrudes outwards to form a second positioning ring (91), a lower connecting end (92) is formed at the upper end of the second body (90), the lower connecting end (92) and the upper connecting end (82) are two ends of a labyrinth sealing structure which are matched with each other,

labyrinth is dustproof inner circle (8) is installed outer lane (10) and labyrinth is dustproof outer lane (9) are installed inner circle (11) back, go up link (82) with link (92) interconnect becomes labyrinth seal down, and every group is relative from top to bottom first holding ring (81) with one is installed to the cavity of second holding ring (91) bearing (7).

4. The transmission device of the bouncing screen as claimed in claim 3, wherein the lower outer side wall of the first body (80) is circumferentially arrayed with a plurality of first stepped through holes (83), and the outer side wall of the outer ring (10) is circumferentially arrayed with a plurality of fourth threaded blind holes (101);

a plurality of second stepped through holes (93) are formed in the circumferential array of the outer side wall of the upper end of the second body (90), and a plurality of third threaded blind holes (112) are formed in the circumferential array of the outer side wall of the inner ring (11).

5. Transmission of a bouncing screen according to claim 4, characterized in that said bearing (7) is a deep groove ball bearing.

6. The transmission device of the bouncing screen as claimed in claim 1, wherein the outer wall of the main shaft (01) is provided with an axial key slot (011), the central hole (21) of the axial positioning sleeve (2) is provided with an axially arranged upper key slot (22), the upper end of the first connecting key (5) is connected with the upper key slot (22) and the lower end is connected with the axial key slot (011);

one side surface of the radial fixing plate (3) is provided with a longitudinal groove (31), one side surface of the inner ring (11) is provided with a radial groove (111), and one end of the second connecting key (6) is connected with the radial groove (111) and the other end of the second connecting key is connected with the longitudinal groove (31).

7. Transmission of a bouncing screen according to claim 6, characterized in that said first connection key (5) and said second connection key (6) are flat keys or splines.

8. The transmission device of a bouncing screen as claimed in claim 1, wherein the end face of the positioning slot (23) is circumferentially arrayed with a plurality of first threaded blind holes (24), and the threaded element of the tensioning sleeve (4) is screwed into the first threaded blind holes (24).

9. The transmission device of the bouncing screen as claimed in claim 1, wherein the radial fixing plate (3) is vertically welded at one end of the axial positioning sleeve (2), the upper end of the radial fixing plate (3) is provided with a plurality of first through holes (32), the side surface of the inner ring (11) is provided with a plurality of second threaded blind holes (12), and a threaded member is screwed into the second threaded blind holes (12) through the first through holes (32), so that the radial fixing plate (3) is fixed on the side surface of the inner ring (11).

10. The transmission device of the bouncing screen as claimed in claim 8, wherein a reinforcing rib (34) is further arranged in the middle of the other side of the radial fixing plate (3), and the lower end of the reinforcing rib (34) is welded to the upper end of the axial positioning sleeve (2).

Images